Combined coal elevator



(l lo Model.)

' L. G. SGOPIELD.

COMBINED COAL ELEVATOR, SUREEN, AND LOADER. N0. 356,165.

Patented Jan. 18,1887

INENTQR WITNESSES ATTORNEYS.

NITE TATES- FFICE.

PATENT LEWIS G. SCOFIELD, OF PHILADELPHIA, PENNSYLVANIA.

COMBINED COAL ELEVATOR, SCREEN, AND LOADER.

SPECIFICATION forming part of Letters Patent No. 356,165, dated January18, 1887.

,Application tiled March 4, 1886. Serial No. 193,967. (No model.)

To aZZ whom it may concern:

Be it known that I, LEwIs G. ScoFInLD, of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented a new and usefulImprovement in a Combined Coal Elevator, Screen, and Loader, of whichthe following is a full, clear, and exact description.

Reference is tobe had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a plan view of my combined coal elevator, screen, andloader. Fig. 2 is a sec,- tionalside elevation of the same,taken throughthe line 00, Fig. 1. Fig. 3 is a side elevation of the rear part of thesame.

The object of this invention is to provide combined coal elevators,screens, and loaders constructed in such a manner that the coal can beshoveled from the bin or yard into the elevator, raised to the screen,screened, and discharged from the screen into a cart, only one shovelingbeing necessary.

The invention consists in the construction and combination of variousparts of the machine, as will be hereinafter fully described andclaimed.

A represents the frame of the machine, the base of which is horizontaland its front and rear parts are inclined to the rearward, as

shown in Fig. 2.

To the upper and lower parts of the front of the frame A are journaledrollers B, around which passes an endless elevator-belt, 0. To theelevator-belt O are attached buckets D, by which the coal shoveled uponthe belt 0 from the floor of a bin or yard will be carried over theupper roller, 13, and discharged upon the screen E. ward and rearwardand rests and slides upon rabbeted bars of the frame A, or upon bars orother ways attached to the said frame.

To the frame A, above the screen E, are attached guard-boards or ahopper, F, to prevent the coal from jumping off when discharged upon thesaid screen.

To the frame A, beneath the screen E, is attached an apron, G, the rearpart of which is parallel with the said screen E, projects in the rearof the said screen, and is designed to guide the screened coal thatpasses off the tail The screen E inclines down-' end of the said screeninto a cart placed at the rear of the machine.

The forward part, G, of the apron G inclines downward and forward toguide the dust and small coal that pass through the screen E to the headend of the screen H, placed below and parallel with the said screen E.

The screen H rests and slides upon rabbeted bars of the frame A, or uponother ways attached to the said frame, and is made of such a fineness'of mesh that the dust will pass through the screen and the small coalwill fall from the tail end of the said screen. The dust and small coalcan be received in boxes, bins, or other receptacles placed in orbeneath the frame A, or the small coal can be received in a receptacleand the dust allowed to fall to the floor or ground.

To the sides of the screens E H are attached pins I J ,which passthrough longitudinal slots in the end parts of the bars K, placed at thesides of the frame A, and pivoted at their middle parts to the saidframe. To the upper ends of the bars K are pivoted the rear ends of theconnecting-bars L, the forward ends of which are pivoted to crank-pinsattached to the wheels M. The crank-Wheels M are attached to the ends ofa shaft, N, journaled in bearings attached to the frame A. To the shaftN is attached a gear-wheel, O, the teeth of which mesh into the teeth ofthe gear-wheel P, attached to a journal of the upper roller, B.

To a journal of the roller B are attached a fast pulley, Q, and a loosepulley, R, to receive a driving-belt, S, from any convenient power.\Vith this construction the coal is shoveled from a bin or yard upon thelower partofthe elevator-belt O, is carried up by the buckets D, and isdischarged upon the screen E, from the tail end of which the screenedcoal falls upon the rear part of the apron G and passes thence to thecart. The dust and small coal that pass through the screen Efall uponthe forward part, G, of the apron G, and slide down the said apron tothe 11ead end of the screen H. The dust falls into a cart, and at thesame time the small coal in the screenings will be separated from thedust; or if the coal be taken from a car or coal-dump with the aid of achute or otherwise conveyed to the elevators, or from a bin slightlyelevated from the ground or floor, the coal can be screened and loadedWithout shovcling.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent 1. The combination, with the frame A, of theelevator B O D, the two screens E H, the interposed guide'apron G G, anda driving mechanism, substantially as herein shown and described,whereby the coal will be raised,

screened, and discharged and the dust and small coal in the screeningsseparated, as set forth.

2. The combination, with. the frame A, the 20 elevator B C D, and thetwo screens E H, of

, forth.

LEWIS G. SOOFIELD.

\Vitnesscs: 1

CHAS. F. LONG, ILR. SHULTZ.

